Find the equation of the axis of symmetry of the parabola.
-$$y = x ^ { 2 } - 20 x + 109$$
A) $x = - 10$
B) $x = 10$
C) $x = 0$
D) $x = 9$

Name: Find the equation of the axis of symmetry of the parabola. -\[y = x ^ { 2 } - 20 x + 109\] A) $x = - 10$ B) $x = 10$ C) $x = 0$ D) $x = 9$
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Question

Quizplus · Accepted Answer

The axis of symmetry for a parabola in the form $y = ax^2 + bx + c$ is given by $x = -\frac{b}{2a}$. For the given equation, $a = 1$ and $b = -20$, so the axis of symmetry is $x = -\frac{-20}{2*1} = 10$.

Find the Equation of the Axis of Symmetry of the Parabola